CY8C25122 Cypress Semiconductor, CY8C25122 Datasheet - Page 39
CY8C25122
Manufacturer Part Number
CY8C25122
Description
8-Bit Programmable System-on-Chip (PSoC) Microcontrollers
Manufacturer
Cypress Semiconductor
Datasheet
1.CY8C25122.pdf
(148 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY8C25122-24PI
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Company:
Part Number:
CY8C25122-24PXI
Manufacturer:
CY
Quantity:
3 276
Part Number:
CY8C25122-24PXI
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
- Current page: 39 of 148
- Download datasheet (2Mb)
The following diagram shows the PSoC MCU Clock Tree of signals 48M through SLP:
7.2.1
The CPU is clocked off the CPU system-clocking signal,
which can be configured to run at one of eight rates. This
selection is independent from all other clock selection
functions. It is completely safe for the CPU to change its
clock rate without a timing hazard. The CPU clock period
is determined by setting the CPU[2:0] bits in the Oscilla-
tor Control 0 Register (OSC_CR0).
September 5, 2002
PLL Lock Enable
Vcc
Vcc
OSC_CR0[6]
CPU and Sleep Timer Clock Options
Lock Loop
Phase
P1[0]
P1[1]
ILO Trim Register
ECO Trim Register
Figure 9: PSoC MCU Clock Tree of Signals
Low Speed
IMO Trim Register
Oscillator
ECO_TR[7:0]
Oscillator
ILO_TR[7:0]
Oscillator
IMO_TR[7:0]
External
Internal
Crystal
Document #: 38-12010 CY Rev. ** CMS Rev. 3.20
Internal
÷ 732
Main
48 MHz
24 MHz
The sleep timer is clocked off the SLP system-clocking
signal. The SLEEP[1] and SLEEP[0] bits in the Oscillator
Control 0 Register (OSC_CR0) allow the user to select
from the four available periods.
32 kHz Select
OSC_CR0[7]
Sleep Clock Div isor
24V1 Clock Div isor
24V2 Clock Div isor
CPU Clock Div isor
OSC_CR0[4:3]
OSC_CR1[7:4]
OSC_CR1[3:0]
OSC_CR0[2:0]
÷ 1
÷ 2
÷ 4
÷ 8
÷ 16
÷ 32
÷ 128
÷ 256
÷ 2
÷ 2
÷ 2
÷ 2
÷ n
÷ n
6
9
1 2
1 5
48M
24M
24V2
24V1
CPU
SLP
32K
Clocking
39
Related parts for CY8C25122
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Cypress Semiconductor [5V, 3.3V, ISRTM High-Performance CPLDs]
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
CY7C0831V-167ACCypress Semiconductor [FLEx18-TM 3.3V 32K/64K/128K/256K/512K x 18 Synchronous Dual-Port RAM]
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
CMOS Generic 24-Pin Reprogrammable Logic Device
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
64K x 16 Static RAM
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
1K x 8 Dual-Port Static Ram
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
128K x 8 static RAM, standby current 20uA, 70ns
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
8Kx9 Static RAM
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
8Kx9 Static RAM
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
4K x 4 Static RAM with Separate I/O
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
1024 x 4 Static R/W RAM
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
256/512/1K/2K/4K x 9 Asynchronous FIFO
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
4K x 4 Static RAM with Separate I/O
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
4K x 4 Static RAM with Separate I/O
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
4K x 4 Static RAM with Separate I/O
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet:
Part Number:
Description:
16K x 4 Static RAM
Manufacturer:
Cypress Semiconductor Corporation.
Datasheet: